Unreal past conditionals
Should/shouldn't have
100

Correct form to write unreal past conditional sentences

If+past perfect, would/might/could have+past participle

100

Which is the form of should/ shouldn't have?

Should/shouldn't have+past participle

200

If the police ____(not arrest)him for murder, he___(not rob) any banks

If the police had arrested him for murder, he would not have robbed any banks

200

Is this sentence correct: "The shouldn't have pressed the send button so quickly"

Correct

300

If Colton___(not steal) a plane, he ___(might/not become) so famous

If colton had not stolen a plane, he might have not become so famous

300

She___(accept) her boss as a friend online 

She shouldn't have accepted her boss as a friend online

400

For what do we use unreal past conditional?

To talk about unreal situations in the past 

400

For what do we use it?

To talk about the past and criticize things we did and didn't do in the past

500

When do we use use a comma?

If the result clause comes first

500

You really___(contact) me sooner about the problem

You really should have contacted me sooner about the problem

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